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CITY
OF
PUBLIC WORKS TELEPHONE
(907)235-3170
MEMORANDUM 07-192
To:
From:
Date:
Subject: Progress
on
Confirm Approval to
Complete Additional Water Main Extension
Project Status: The Council approved the design contract for
the project in January of 2007. Since that time, the engineering firm of
Bristol Environmental has completed the conceptual design and is now completing
the 35% design. The
Public Works has
held two neighborhood meetings and sent four letters to property owners
providing information about the project.
The last letter identified easements that would need to be acquired to
proceed with this project. The 35%
design, expected in December, will include plan and profile sheets and a cost
estimate. Public Works will review the
plans and estimate to determine whether the project continues
to be within the budget established by the Council when it established the
LID. No work will be completed beyond
the 35% design until the project is within the approved budget.
If easements can be
acquired this winter, construction could begin next summer. It is possible that construction could extend
through until the summer of 2009. There
are some advantages to complet-ing parts of this work during the winter, from
both a cost and an environmental impact perspective.
The geotechnical
report will provide a discussion of whether or not the construction of water
and sewer mains along
While the above
Phase II work has been proceeding, two attempts were made to create a Phase III
LID. Both these efforts failed to result
in an approved LID. Although there could
have been some efficiency involved in completing both Phase II and III
together, the failure to create Phase III has little bearing on the successful
completion of Phase II. A separate lift
station is required to provide sewer service to Phase III. The real advantage to having Phase II and III
completed together is that the water main would have been looped completely
around
Additional Water Main Extension Needed: The
attached map shows the location of Phase I, II, and III water main
projects. A 14,500 foot long dead end
main now exists out
end line.
Water quality suffers in dead end lines and fire flows are
restricted. Damage to a section of a
dead end main puts many out of water during repair operations.
Completing the Phase
III water main (4,400 linear feet) at the same time the Phase II main is being
installed would solve these problems. This additional main could be completed
without an immediate
charge to the adjacent property owners. Deferred
assessments could be set up so that as properties connected to the water main
in the future they would pay their benefiting share of the cost at that
time. HAWSP would assume the up front
cost of the installation. The
expectation would be that until the sewer main was installed, no property
owners would be allowed to connect to the water main.
No water services
would be installed. Fire hydrants would
be installed. Only those properties that
fronted the main would receive deferred assessments. These deferred assessments
would be calculated as if they were apart of an LID (75% owner / 25%
City). The City would pay for over-sizing
the main from an 8” to a 12”.
The estimated cost
of this water main improvement is $600,000.
30 lots would benefit from this water main improvement, each lot would
be expected to receive a deferred assessment of approximately $15,000.
Recommendation: Authorize the design and installation
of an additional 4,400 linear feet of water main along